var path          = require('path');
var fs            = require('fs');
var os            = require('os');
var parallel      = require('async/parallel');
var eachLimit     = require('async/eachLimit');
var forEachLimit  = require('async/forEachLimit');
var p             = path;
var readline      = require('readline');
var spawn         = require('child_process').spawn;
var chalk         = require('chalk');
var Configuration = require('../../Configuration.js');
var cst           = require('../../../constants.js');
var Common        = require('../../Common');
var Utility       = require('../../Utility.js');
var Rollback = require('./Rollback.js')